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Optoelectric spin injection in semiconductor heterostructures without a ferromagnet

Mal'shukov, AG and Chao, Koung-An LU (2002) In Physical Review B (Condensed Matter and Materials Physics) 65(24).
Abstract
We have shown that electron-spin density can be generated by a dc current flowing across a pn junction with an embedded asymmetric quantum well. Spin polarization is created in the quantum well by radiative electron-hole recombination when the conduction electron momentum distribution is shifted with respect to the momentum distribution of holes in the spin-split valence subbands. Spin current appears when the spin polarization is injected from the quantum well into the n-doped region of the pn junction. The accompanied emission of circularly polarized light from the quantum well can serve as a spin polarization detector.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
65
issue
24
publisher
American Physical Society
external identifiers
  • wos:000177043100012
  • scopus:0037098492
ISSN
1098-0121
DOI
10.1103/PhysRevB.65.241308
language
English
LU publication?
yes
id
73a05ad4-21bd-434c-b56d-b79440b694ba (old id 332555)
date added to LUP
2007-11-19 13:19:34
date last changed
2017-01-01 07:03:58
@article{73a05ad4-21bd-434c-b56d-b79440b694ba,
  abstract     = {We have shown that electron-spin density can be generated by a dc current flowing across a pn junction with an embedded asymmetric quantum well. Spin polarization is created in the quantum well by radiative electron-hole recombination when the conduction electron momentum distribution is shifted with respect to the momentum distribution of holes in the spin-split valence subbands. Spin current appears when the spin polarization is injected from the quantum well into the n-doped region of the pn junction. The accompanied emission of circularly polarized light from the quantum well can serve as a spin polarization detector.},
  author       = {Mal'shukov, AG and Chao, Koung-An},
  issn         = {1098-0121},
  language     = {eng},
  number       = {24},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Optoelectric spin injection in semiconductor heterostructures without a ferromagnet},
  url          = {http://dx.doi.org/10.1103/PhysRevB.65.241308},
  volume       = {65},
  year         = {2002},
}